Global Patent Index - EP 3944449 A1

EP 3944449 A1 20220126 - SYSTEM AND METHOD FOR FREQUENCY FILTERING OF A RENEWABLE ENERGY POWER SYSTEM

Title (en)

SYSTEM AND METHOD FOR FREQUENCY FILTERING OF A RENEWABLE ENERGY POWER SYSTEM

Title (de)

SYSTEM UND VERFAHREN ZUR FREQUENZFILTERUNG EINES VERSORGUNGSSYSTEMS MIT ERNEUERBARER ENERGIE

Title (fr)

SYSTÈME ET PROCÉDÉ DE FILTRAGE DE FRÉQUENCE D'UN SYSTÈME D'ALIMENTATION D'ÉNERGIE RENOUVELABLE

Publication

EP 3944449 A1 20220126 (EN)

Application

EP 21183489 A 20210702

Priority

US 202016937658 A 20200724

Abstract (en)

A method for controlling a renewable energy power system having at least one renewable energy asset connected to a power grid during a frequency event includes receiving, via a controller, a frequency signal of the power grid. The method also includes determining a time constant for a frequency filter assembly as a function of two or more parameters of the frequency signal. Further, the method includes filtering the frequency signal via the frequency filter assembly using the determined time constant. Moreover, the method includes determining a power command for the at least one renewable energy asset using the filtered frequency signal. In addition, the method includes controlling the at least one renewable energy asset based on the power command.

IPC 8 full level

H02J 3/24 (2006.01); G05B 13/02 (2006.01); H02J 3/00 (2006.01)

CPC (source: CN EP US)

F03D 9/255 (2017.01 - CN); F03D 17/00 (2016.05 - CN US); F03D 80/00 (2016.05 - CN); G05B 15/02 (2013.01 - EP); H02J 3/00125 (2020.01 - EP); H02J 3/241 (2020.01 - EP); F05B 2270/337 (2013.01 - US); G05B 2219/2619 (2013.01 - EP); H02J 2300/28 (2020.01 - EP); Y02E 10/72 (2013.01 - EP)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3944449 A1 20220126; CN 113969872 A 20220125; US 11549493 B2 20230110; US 2022025865 A1 20220127

DOCDB simple family (application)

EP 21183489 A 20210702; CN 202110835170 A 20210723; US 202016937658 A 20200724